For "The GrAde" Tutor Only (All Others Will Not Be Accepted) THANKS

Two questions (no word count and due in 12 hours) 

1) Under what conditions should a business estimate divisional costs of capital?

2) Perform a sensitivity analysis to see how NPV is affected by changes in the Number of procedures per day, average collection amount and salvage value. (Consider the project contained in problem 14.7 in Chapter 14- Attached).

Please reference: Gapenski, L. (2012) Healthcare Finance. 5th edition